:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

body {
    background-color: var(--light-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar-brand {
    font-weight: bold;
}

.navbar-nav .nav-link {
    border-radius: 5px;
    margin: 0 2px;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.navbar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
}

.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: var(--light-color);
    border-bottom: 1px solid #dee2e6;
    font-weight: 600;
}

.btn {
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.badge {
    font-size: 0.75em;
}

.table {
    background-color: white;
    border-radius: 5px;
    overflow: hidden;
}

.table th {
    background-color: var(--light-color);
    border-top: none;
    font-weight: 600;
}

.stats-card {
    text-align: center;
    padding: 1.5rem;
}

.stats-card h2 {
    font-size: 2.5rem;
    font-weight: bold;
    margin: 0;
}

.plate-number {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 1.2em;
    background-color: var(--warning-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
}

.confidence-high {
    color: var(--success-color);
}

.confidence-medium {
    color: var(--warning-color);
}

.confidence-low {
    color: var(--danger-color);
}

.priority-high {
    color: var(--danger-color);
    font-weight: bold;
}

.priority-medium {
    color: var(--warning-color);
}

.priority-low {
    color: var(--info-color);
}

.status-active {
    color: var(--success-color);
}

.status-inactive {
    color: var(--secondary-color);
}

.status-maintenance {
    color: var(--warning-color);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.btn-group .btn {
    margin-right: 0;
}

.loading {
    opacity: 0.6;
    pointer-events: none;
}

.notification-badge {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(220, 53, 69, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(220, 53, 69, 0);
    }
}

.camera-preview {
    width: 100%;
    height: 200px;
    background-color: #000;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.9rem;
}

.plate-image {
    max-width: 100px;
    max-height: 50px;
    border-radius: 3px;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.plate-image:hover {
    transform: scale(1.5);
    z-index: 1000;
    position: relative;
}

.search-form {
    background-color: white;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.sidebar-filters {
    background-color: white;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.datetime-input {
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .navbar-nav {
        text-align: center;
    }
    
    .stats-card {
        margin-bottom: 1rem;
    }
    
    .btn-group-vertical .btn {
        margin-bottom: 0.5rem;
    }
}

/* Additional utility classes */
.cursor-pointer {
    cursor: pointer;
}

.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--success-color), #1e7e34);
}

.bg-gradient-warning {
    background: linear-gradient(135deg, var(--warning-color), #e0a800);
}

.bg-gradient-danger {
    background: linear-gradient(135deg, var(--danger-color), #c82333);
}